#include<stdio.h>
int main()
{
    char grade;
    scanf("%c",&grade);
    printf("your grade is %c\n",grade);
    printf("your score is ");
    switch (grade)
    {
    case 'A':printf("85~100\n");break;/* constant-expression */
    case 'B':printf("70~84\n");break;
    case 'C':printf("60~69\n");break;
    case 'D':printf("<60\n");break;    /* code */
        
    
    default:printf("DATA ERROR!!!\n");
        
    }
    getchar();
return 0;
}